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Summary of Significant Accounting Policies (Details Textual)
9 Months Ended
Sep. 30, 2021
Property1
$ / shares
shares
Oct. 31, 2021
Property1
Dec. 31, 2020
shares
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
Number of leased properties | Property1 4 4  
AIMCO PROPERTIES, L.P [Member]      
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
Units issued (in shares) | shares 2,935,920   2,938,802
Units outstanding (in shares) | shares 2,935,920   2,938,802
AIMCO PROPERTIES, L.P [Member] | Minimum [Member]      
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
Distributions per annum (in dollars per share) | $ / shares $ 0.48    
Distributions per annum 1.92%    
AIMCO PROPERTIES, L.P [Member] | Maximum [Member]      
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]      
Distributions per annum (in dollars per share) | $ / shares $ 8.00    
Distributions per annum 8.75%